Informed

S8, E1: Benson is called in after a young woman shows up at the hospital, raped and beaten with her head shaved. Haley Kerns refuses to submit to a rape kit, but Benson steals her underwear before leaving the apartment and gives it to Warner to check out. When Benson returns to her apartment, she encounters Star Morrison who admits that Haley is a federal informant working with them on eco-terrorism.